Properties

Label 176400.sa
Number of curves $4$
Conductor $176400$
CM \(\Q(\sqrt{-7}) \)
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("sa1")
 
E.isogeny_class()
 

Elliptic curves in class 176400.sa

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality CM discriminant
176400.sa1 176400gr4 \([0, 0, 0, -6559875, 6466493250]\) \(16581375\) \(1882737888192000000\) \([2]\) \(4128768\) \(2.5676\)   \(-28\)
176400.sa2 176400gr3 \([0, 0, 0, -385875, 113447250]\) \(-3375\) \(-1882737888192000000\) \([2]\) \(2064384\) \(2.2210\)   \(-7\)
176400.sa3 176400gr2 \([0, 0, 0, -133875, -18852750]\) \(16581375\) \(16003008000000\) \([2]\) \(589824\) \(1.5946\)   \(-28\)
176400.sa4 176400gr1 \([0, 0, 0, -7875, -330750]\) \(-3375\) \(-16003008000000\) \([2]\) \(294912\) \(1.2480\) \(\Gamma_0(N)\)-optimal \(-7\)

Rank

sage: E.rank()
 

The elliptic curves in class 176400.sa have rank \(0\).

Complex multiplication

Each elliptic curve in class 176400.sa has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-7}) \).

Modular form 176400.2.a.sa

sage: E.q_eigenform(10)
 
\(q + 4 q^{11} + O(q^{20})\) Copy content Toggle raw display

Isogeny matrix

sage: E.isogeny_class().matrix()
 

The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the LMFDB numbering.

\(\left(\begin{array}{rrrr} 1 & 2 & 7 & 14 \\ 2 & 1 & 14 & 7 \\ 7 & 14 & 1 & 2 \\ 14 & 7 & 2 & 1 \end{array}\right)\)

Isogeny graph

sage: E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with LMFDB labels.